| Patents for C10G 53 - Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes (1,942) |
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| 01/12/1993 | US5178750 Extract of solvent refining cooled to give aromatic-lean secondary raffinate, deasphalting |
| 01/12/1993 | US5178747 Free of polynuclear aromatic compounds; vacuum distillation; solvent extraction |
| 01/07/1993 | WO1993000414A1 Non-carcinogenic bright stock extracts and deasphalted oils and process for the production thereof |
| 12/23/1992 | CN1019584B Solvent extraction process |
| 12/08/1992 | US5169516 Catalytic oxidation of mercaptans; selective absorption |
| 10/27/1992 | CA1309424C Process for pretreatment of an isomerization process feedstock containing light hydrocarbons |
| 10/19/1992 | CA2040763A1 Method of operating an unsaturated gas plant |
| 10/14/1992 | CN1018654B Method for removal of mercury from liquid hydrocarbon |
| 09/09/1992 | EP0502008A1 Improving storage stability of oils |
| 06/09/1992 | US5120900 Integrated solvent extraction/membrane extraction with retentate recycle for improved raffinate yield |
| 06/06/1992 | WO1992010448A1 Integrated solvent extraction/membrane extraction with retentate recycle for improved raffinate yield |
| 06/06/1992 | CA2096656A1 Integrated solvent extraction/membrane extraction with retentate recycle for improved raffinate yield |
| 05/14/1992 | WO1992008770A1 Process for recovery of oil from waste oil sludges |
| 05/14/1992 | CA2096247A1 Process for recovery of oil from waste oil sludges |
| 05/13/1992 | EP0485077A1 Solvent extraction process involving membrane separation of extract phase and/or intermediate zone phase with pseudo extract/pseudo raffinate recycle |
| 05/06/1992 | CA2054046A1 Solvent extraction process involving membrane separation of extract phase and/or intermediate zone phase with pseudo extract/pseudo raffinate recycle |
| 04/15/1992 | CN1060305A Process for deodorizing coal oil fraction |
| 03/11/1992 | WO1992004424A1 Process for the recovery of oil from waste oil sludges |
| 03/11/1992 | CA2092926A1 Process for the recovery of oil from waste oil sludges |
| 03/10/1992 | US5095170 Removal of aromatics |
| 11/21/1991 | EP0457465A1 Integrated cracking, etherification and olefin upgrading process |
| 11/19/1991 | CA2041238A1 Integrated cracking, etherification and olefin upgrading process |
| 11/12/1991 | CA1291958C Method for eliminating reentry disulfides in a mercaptan extraction process |
| 11/05/1991 | US5062948 Mercury removal from liquid hydrocarbon compound |
| 10/01/1991 | US5053209 Removal of mercury from natural gas and liquid hydrocarbons utilizing silver on alumina adsorbent |
| 09/11/1991 | CN1013873B Method for separating water and solid particles from fuel oil, especially shale oil |
| 09/03/1991 | CA1288329C Method for partial condensation of hydrocarbon gas mixtures |
| 08/14/1991 | EP0441677A1 Process for stabilising catalytically cracked gasoils, obtained gasoils and compositions containing this stabilised gasoil |
| 08/13/1991 | US5039399 Solvent extraction of lubricating oils |
| 08/07/1991 | EP0439905A1 Separation of furfural/middle distillate streams |
| 08/06/1991 | US5037552 Process for removal of mercury from a liquid hydrocarbon |
| 07/30/1991 | CA1287007C Process for upgrading diesel oils |
| 07/23/1991 | US5034119 Non-carcinogenic bright stock extracts and deasphalted oils |
| 07/19/1991 | CA2025028A1 Separation of furfural/middle distillate streams |
| 06/25/1991 | CA1285210C Low pressure process for c + liquids recovery from process product gas |
| 06/19/1991 | EP0433027A1 Method of cat-cracking feed preparation |
| 06/05/1991 | EP0430444A1 Solvent extraction of lubricating oils |
| 06/04/1991 | US5021143 Process of fractionation and extraction of hydrocarbons allowing obtaining a cut of increased octane index and a kerosene of improved smoke point |
| 05/30/1991 | WO1991007475A1 Improving storage stability of oils |
| 04/23/1991 | US5009772 Pressure reduction enhanced separation |
| 04/02/1991 | CA1282364C Deasphalting process including energy recovery in the course of the separation of deasphalted oil and deasphalting solvent |
| 03/26/1991 | CA1281995C Process for the recovery of hydrogen/heavy hydrocarbons from hydrogen-lean feed gases |
| 02/20/1991 | CN1011663B Chemical processing with operational step sensitive to feedstream component |
| 02/12/1991 | US4992163 Cat cracking feed preparation |
| 02/05/1991 | US4990712 Integrated cracking, etherification and olefin upgrading process |
| 02/05/1991 | US4990237 Demetallization by heating, condensing and centrifuging to separate water and oil products for reuse |
| 01/30/1991 | CN1011438B Method for partial condensation of hydrocarbon gas mixture |
| 01/15/1991 | CA1278920C Process for enhancing the centane number of diesel fuel |
| 01/01/1991 | US4982051 Separation of furfural/middle distillate streams |
| 01/01/1991 | US4982048 High octane gasoline |
| 11/06/1990 | CA1275960C Process for upgrading diesel oils including cetane improvement |
| 10/17/1990 | CN1046151A Mercury removal from liquid hydrocarbon compound |
| 09/25/1990 | CA1274551A1 Continuous process for mercaptan extraction from a highly olefinic feed stream |
| 09/18/1990 | CA1274206A1 Process for separating water and solids from fuels, particularly from shale oil |
| 09/07/1990 | WO1990010048A1 Solvent extraction process |
| 09/05/1990 | EP0385742A1 Mercury removal from liquid hydrocarbon compound |
| 09/05/1990 | CN1045119A Solvent extraction process |
| 08/29/1990 | EP0384540A1 Process for isomerization of a hydrocarbon stream |
| 08/08/1990 | CN1009111B Continous process for mercaptan extraction from highly definic feed stream |
| 06/27/1990 | EP0374320A1 Process for pretreatment of an isomerization process feedstock containing light hydrocarbons |
| 06/20/1990 | CN1008441B Method for eliminating reentry disulfides in mercaptan extraction |
| 05/15/1990 | US4925535 Process for the production of an aromate concentrate suitable for use as blending component for gasification fuel |
| 03/06/1990 | US4906354 Process for improving the thermal stability of jet fuels sweetened by oxidation |
| 02/21/1990 | CN1039834A Method for removal of mercury from liquid hydrocarbon |
| 02/14/1990 | EP0354826A1 Hydrocarbon fractionation and extraction process to obtain a petrol with a high octane number and a kerosene with an altered smoke point |
| 01/31/1990 | EP0352420A1 A process for removal of mercury from a liquid hydrocarbon |
| 12/27/1989 | EP0347888A2 Silicone oil recovery |
| 11/28/1989 | US4883581 Pretreatment for reducing oxidative reactivity of baseoils |
| 10/24/1989 | US4875997 Process for treating hydrocarbons containing mercaptans |
| 08/15/1989 | US4857150 Silicone oil recovery |
| 07/11/1989 | US4846962 Furfural, phenol or methylpyrrolidone solvent extraction |
| 06/27/1989 | US4842715 Novel technique for rendering oily sludges environmentally acceptable |
| 05/16/1989 | US4831208 Chemical processing with an operational step sensitive to a feedstream component |
| 03/28/1989 | CA1251758A1 Upgrading heavy hydrocarbon oils using sodium hypochlorite |
| 03/22/1989 | EP0307864A1 Process for the recovery of hydrogen/heavy hydrocarbons from hydrogen-lean feed gases |
| 03/22/1989 | CN1031854A Process for improving thermal stability of jet fuels sweetened by catalytic oxidation |
| 03/15/1989 | EP0307146A1 Process for improving the thermal stability of jet fuels sweetened by catalytic oxidation |
| 03/08/1989 | EP0305668A1 Process for the production of a concentrate of aromatics suitable for use as a blending component for petrol |
| 03/07/1989 | US4810367 Heavy solvent and light solvent, precipitation |
| 02/08/1989 | CN1030929A Method for partial condensation of hydrocarbon gas mixtures |
| 01/18/1989 | EP0299157A2 Method for partial condensation of hydrocarbon gas mixtures |
| 01/10/1989 | US4797198 Supercritical solvent extraction, filtration, distillation, catalytic hydrogenation, gasification |
| 01/03/1989 | US4795545 Zeolite then alumina adsorption |
| 12/13/1988 | CA1246482A1 Method to process heavy crude oils |
| 11/22/1988 | US4786405 Treatment with sodium hydride, sulfuric acid, oxidizing and neutralizing agents |
| 11/15/1988 | US4784753 Supercritical temperature and pressure, heat exchanging |
| 10/05/1988 | CN88101684A Chemical processing with operational step sensitive to feedstream component |
| 09/28/1988 | EP0284228A1 Chemical processing with an operational step sensitive to a feedstream component |
| 08/17/1988 | EP0278694A2 Method for removing basic nitrogen compounds from extracted oils by use of acidic polar adsorbents and the regeneration of said adsorbents |
| 06/29/1988 | CN87101298A Method for elimiorating reentry disulfides in mercaptan extraction |
| 06/22/1988 | EP0271823A1 Process for eliminating reentry disulfides in a mercaptan extraction process |
| 06/14/1988 | CA1238008A1 Heavy oil sample preparation |
| 06/07/1988 | US4749393 Acid gas removal, dehydration, cryogenic separation |
| 05/24/1988 | US4746420 Process for upgrading diesel oils |
| 03/29/1988 | US4734115 Low pressure process for C3+ liquids recovery from process product gas |
| 02/23/1988 | US4726826 Cooling by heat exchanging, condensation and separation |
| 01/13/1988 | EP0252606A2 Process for increasing the cetane number of diesel fuels |
| 12/02/1987 | EP0247802A1 Isomerisation of olefins |
| 11/25/1987 | EP0246956A1 Process for the elimination of asphaltenes from a hydrocarbon feedstock |
| 11/17/1987 | US4707275 Process for separating water and solids from fuels |